FLIGHT TIME / CALCULATED ESTIMATE
Ulaanbaatar (Sergelen) ↗ Dulles
UBN / Ulaanbaatar Chinggis Khaan International AirportIAD / Washington Dulles International Airport
MODELLED FLYING TIME13h 6mIllustrative estimate, not a scheduled flight
GREAT-CIRCLE DISTANCE10,377 kmGeographic straight-line distance
ROUTE CATEGORYInternationalOrigin and destination country records
How long is the flight?
The calculated airborne flight-time estimate between Ulaanbaatar (Sergelen) (UBN) and Dulles (IAD) is approximately 13 hours and 6 minutes for a modelled route length of 10,377 km.
This is not a confirmed nonstop service or published airline schedule. Airlines can use different paths, and connection time, taxiing, winds, weather, airspace restrictions and operational delays can change the actual journey.
Reference coordinates
Departure: Ulaanbaatar Chinggis Khaan International Airport. Arrival: Washington Dulles International Airport. Both airport-code and coordinate records are drawn from the site’s imported aviation dataset, with initial curated data used until refreshed.